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Author: Subject: CAS-Nr.:19718-92-4 to trade
DrScrabs
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[*] posted on 14-3-2018 at 15:06
CAS-Nr.:19718-92-4 to trade


Hello guys,
got up to 200g of
4-(Dimethylamino)butyraldehyde Dimethyl Acetal CAS-Nr.:19718-92-4 >97.3 %, GC avaliable
to share. If you like some, I'm always in the mood of new glassware or other fancy stuff (I do not sell).

I already wrote nearly the same post here so if it is considered as a double please delete one.

I really did not pay much and I do not want to make buisness. Most vendors do sell this chemical too expensive in my opinion, more kind of rip off so let´s see some nice Claisen-Eschenmooser soon I hope

u2u me if you are interested.

DrScrabs

[Edited on 15-3-2018 by DrScrabs]
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DrScrabs
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[*] posted on 16-3-2018 at 05:20


Ok changed my mind, I am willing to sell the appx 200g for 5$ per gram. excl shipping and packaging no matter how much you want. shipping within europe is no problem.

Edit: oops i did it again, it´s 3$ per g

[Edited on 17-3-2018 by DrScrabs]
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[*] posted on 16-3-2018 at 05:39


What can we do with this chemical?
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DrScrabs
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[*] posted on 17-3-2018 at 01:14


You can do a Fischer indole synthesis with 4-x substituted phenylhydrazines or eschenmoser-claisen rearrangement should be possible. I had a good example for the eschenmoser but I do not find it atm, sorry, I will post it as soon as I find it again
Fischer indole example can be found in the rhodium archieve
https://erowid.org/archive/rhodium/chemistry/dmten.html
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[*] posted on 17-3-2018 at 05:32


Then, out of the blue, when it is most unexpected, something very different presents itself.

Screenshot_20180317-081343.png - 561kB
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DrScrabs
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[*] posted on 17-3-2018 at 07:49


Well, thats exactly the way I felt on getting the wrong chem. Sadly illigal to synthesise, this would be the way to use your "on-board reactor" if one likes to play on his own chemistry anyway.
Nice comic thx :)
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[*] posted on 17-3-2018 at 08:26


deleted, totally wrong sry

[Edited on 17-3-2018 by DrScrabs]
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[*] posted on 11-5-2019 at 13:42


bump
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[*] posted on 14-5-2019 at 22:09


Quote: Originally posted by DrScrabs  

Edit: oops i did it again, it´s 3$ per g

[Edited on 17-3-2018 by DrScrabs]


Isn't that CAS 1116-77-4?
Also, € 3 per gram is what you can get from suppliers in general — Even 2 €/gram if you buy 25 g of it



Screenshot 2019-05-15 at 08.05.02.png - 20kB
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[*] posted on 14-5-2019 at 23:20


Quote: Originally posted by Keras  


Isn't that CAS 1116-77-4?
Also, € 3 per gram is what you can get from suppliers in general — Even 2 €/gram if you buy 25 g of it




No it isn´t. You mention the diethyl acetal, I posted the dimethyl acetal.
The methyl is at 167 eur per 25g on tcichemicals.
And even in larger amounts it´d be about 1 eur per ml as far as I know.
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[*] posted on 14-5-2019 at 23:49


Quote: Originally posted by DrScrabs  

No it isn´t. You mention the diethyl acetal, I posted the dimethyl acetal.
The methyl is at 167 eur per 25g on tcichemicals.
And even in larger amounts it´d be about 1 eur per ml as far as I know.


Oh, my bad. Sorry.

PS: what justifies such a price bump?

[Edited on 15-5-2019 by Keras]
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[*] posted on 15-5-2019 at 01:02


In the fischer the acetal has to undergo hydrolysis first, maybe the methy hydrolyses more readily than the ethyl under those conditions. But actually I dont know. Quite large difference for nearly the same compound, I think even the same manufacturing route except for the MeOH/EtOH swap.
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[*] posted on 15-5-2019 at 13:58


PM sent



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